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Yadav P, Samanta K, Arya V, Biswas D, Kim HS, Bakli C, Jung HY, Ghosh D. A 2.5 V In-Plane Flexi-Pseudocapacitor with Unprecedented Energy and Cycling Efficiency for All-Weather Applications. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2400975. [PMID: 38618920 DOI: 10.1002/smll.202400975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2024] [Revised: 03/26/2024] [Indexed: 04/16/2024]
Abstract
As electronic devices for aviation, space, and satellite applications become more sophisticated, built-in energy storage devices also require a wider temperature spectrum. Herein, an all-climate operational, energy and power-dense, flexible, in-plane symmetric pseudocapacitor is demonstrated with utmost operational safety and long cycle life. The device is constructed with interdigital-patterned laser-scribed carbon-supported electrodeposited V5O12·6H2O as a binder-free electrode and a novel high-voltage anti-freezing water-in-salt-hybrid electrolyte. The anti-freezing electrolyte can operate over a wide temperature range of -40-60 °C while offering a stable potential window of ≈2.5 V. The device undergoes rigorous testing under diverse environmental conditions, including rapid and regular temperature and mechanical transition over multiple cycles. Additionally, detailed theoretical simulation studies are performed to understand the interfacial interactions with the active material as well as the local behavior of the anti-freeze electrolyte at different temperatures. As a result, the all-weather pseudocapacitor at 1 A g-1 shows a high areal capacitance of 234.7 mF cm-2 at room temperature and maintains a high capacitance of 129.8 mF cm-2 even at -40 °C. Besides, the cell operates very reliably for over 80 950 cycles with a capacitance of 25.7 mF cm-2 at 10 A g-1 and exhibits excellent flexibility and bendability under different stress conditions.
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Affiliation(s)
- Prahlad Yadav
- Centre for Nano and Material Sciences, JAIN (Deemed to be University), Kanakapura Road, Bangalore, Karnataka, 562112, India
| | - Ketaki Samanta
- Department of Materials Engineering, Indian Institute of Science, Bangalore, Karnataka, 560012, India
| | - Vinay Arya
- Thermofluidics and Nanotechnology for Sustainable Energy Systems Laboratory, School of Energy Science and Engineering, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal, 721302, India
| | - Diptesh Biswas
- Thermofluidics and Nanotechnology for Sustainable Energy Systems Laboratory, School of Energy Science and Engineering, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal, 721302, India
| | - Hun-Seong Kim
- Department of Energy System Engineering, Gyeongsang National University, Jinju-si, Gyeongnam, 52725, South Korea
| | - Chirodeep Bakli
- Thermofluidics and Nanotechnology for Sustainable Energy Systems Laboratory, School of Energy Science and Engineering, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal, 721302, India
| | - Hyun Young Jung
- Department of Energy System Engineering, Gyeongsang National University, Jinju-si, Gyeongnam, 52725, South Korea
- Department of Energy Engineering, Gyeongsang National University, Jinju-si, Gyeongnam, 52725, South Korea
| | - Debasis Ghosh
- Centre for Nano and Material Sciences, JAIN (Deemed to be University), Kanakapura Road, Bangalore, Karnataka, 562112, India
- Department of Energy Engineering, Gyeongsang National University, Jinju-si, Gyeongnam, 52725, South Korea
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Puttaswamy R, Lee H, Bae HW, Youb Kim D, Kim D. Ethylene Glycol-Choline Chloride Based Hydrated Deep Eutectic Electrolytes Enabled High-Performance Zinc-Ion Battery. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2400692. [PMID: 38651492 DOI: 10.1002/smll.202400692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2024] [Revised: 03/30/2024] [Indexed: 04/25/2024]
Abstract
Aqueous rechargeable zinc-ion batteries (ARZIBs) are considered as an emerging energy storage technology owing to their low cost, inherent safety, and reasonable energy density. However, significant challenges associated with electrodes, and aqueous electrolytes restrict their rapid development. Herein, ethylene glycol-choline chloride (Eg-ChCl) based hydrated deep-eutectic electrolytes (HDEEs) are proposed for RZIBs. Also, a novel V10O24·nH2O@rGO composite is prepared and investigated in combination with HDEEs. The formulated HDEEs, particularly the composition of 1 ml of EG, 0.5 g of ChCl, 4 ml of H2O, and 2 M ZnTFS (1-0.5-4-2 HDEE), not only exhibit the lowest viscosity, highest Zn2+ conductivity (20.38 mS cm-1), and the highest zinc (Zn) transference number (t+ = 0.937), but also provide a wide electrochemical stability window (>3.2 V vs ZnǁZn2+) and enabledendrite-free Zn stripping/plating cycling over 1000 hours. The resulting ZnǁV10O24·nH2O@rGO cell with 1-0.5-4-2 HDEE manifests high reversible capacity of ≈365 mAh g-1 at 0.1 A g-1, high rate-performance (delivered ≈365/223 mAh g-1 at 0.1/10 mA g-1) and enhanced cycling performance (≈63.10% capacity retention in the 4000th cycle at 10 A g-1). Furthermore, 1-0.5-4-2 HDEE support feasible Zn-ion storage performance across a wide temperature range (0-80 °C) FInally, a ZnǁV10O24·nH2O@rGO pouch-cell prototype fabricated with 1-0.5-4-2 HDEE demonstrates good flexibility, safety, and durability.
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Affiliation(s)
- Rangaswamy Puttaswamy
- School of Chemical Engineering, Sungkyunkwan University, Suwon, Gyeonggi, 16419, Republic of Korea
| | - Hyocheol Lee
- School of Chemical Engineering, Sungkyunkwan University, Suwon, Gyeonggi, 16419, Republic of Korea
| | - Hyo-Won Bae
- Advanced Materials Division, Korea Research Institute of Chemical Technology, 141 Gajeong-ro, Yuseong-gu, Daejeon, 34114, Republic of Korea
| | - Do Youb Kim
- Advanced Materials Division, Korea Research Institute of Chemical Technology, 141 Gajeong-ro, Yuseong-gu, Daejeon, 34114, Republic of Korea
| | - Dukjoon Kim
- School of Chemical Engineering, Sungkyunkwan University, Suwon, Gyeonggi, 16419, Republic of Korea
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Wu TH, Chen JA, Su JH. Interface engineering of heterostructured vanadium oxides for enhanced energy storage in Zinc-Ion batteries. J Colloid Interface Sci 2024; 654:308-316. [PMID: 37844502 DOI: 10.1016/j.jcis.2023.10.044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2023] [Revised: 10/05/2023] [Accepted: 10/10/2023] [Indexed: 10/18/2023]
Abstract
Rechargeable aqueous Zn-ion batteries (RAZIBs) with the merits of cost effectiveness and high safety have been rejuvenated as tantalizing energy storage systems to meet the demand for grid-scale applications. Currently, the energy storage capability of the positive electrode (cathode) holds the key for the overall performance of RAZIBs. In this work, we reveal VO2, V10O24·12H2O (HVO), and VO2/HVO can be prepared via hydrothermal reaction by using different reducing agents. VO2 exhibits high capacity of 237 mAh/g at 4 A/g, while it suffers from quick capacity decay with 48 % retention after 2000 charge/discharge cycles. On the contrary, HVO demonstrates moderate capacity but meritorious cycle stability (i.e., 173 mAh/g at 4 A/g and 82 % after 2000 cycles). By integrating the merits of high-capacity VO2 and high-stability HVO, the biphasic VO2/HVO sample exhibits promising electrochemical performance with high capacity (317 and 239 mAh/g at 1 and 4 A/g, respectively) and good cycle stability (80 % after 2000 cycles). As examined by band structure analysis, the superior electrochemical performance of VO2/HVO is attributed to the presence of a heterojunction between VO2 and HVO enabling a built-in electric field to boost electron transport kinetics, leading to high attainable capacity and reliable cycle performance in RAZIBs.
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Affiliation(s)
- Tzu Ho Wu
- Department of Chemical and Materials Engineering, National Yunlin University of Science and Technology, 123 University Road, Section 3, Douliou, Yunlin 64002, Taiwan.
| | - Jheng An Chen
- Department of Chemical and Materials Engineering, National Yunlin University of Science and Technology, 123 University Road, Section 3, Douliou, Yunlin 64002, Taiwan
| | - Jia He Su
- Department of Chemical and Materials Engineering, National Yunlin University of Science and Technology, 123 University Road, Section 3, Douliou, Yunlin 64002, Taiwan
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Mo L, Huang Y, Wang Y, Wei T, Zhang X, Zhang H, Ren Y, Ji D, Li Z, Hu L. Electrochemically Induced Phase Transformation in Vanadium Oxide Boosts Zn-Ion Intercalation. ACS NANO 2024; 18:1172-1180. [PMID: 38146712 DOI: 10.1021/acsnano.3c11217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2023]
Abstract
Vanadium oxides are excellent cathode materials with large storage capacities for aqueous zinc-ion batteries, but their further development has been hampered by their low electronic conductivity and slow Zn2+ diffusion. Here, an electrochemically induced phase transformation strategy is proposed to mitigate and overcome these barriers. In situ X-ray diffraction analysis confirms the complete transformation of tunnel-like structural V6O13 into layered V5O12·6H2O during the initial electrochemical charging process. Theoretical calculations reveal that the phase transformation is crucial to reducing the Zn2+ migration energy barrier and facilitating fast charge storage kinetics. The calculated band structures indicate that the bandgap of V5O12·6H2O (0.0006 eV) is lower than that of V6O13 (0.5010 eV), which enhanced the excitation of charge carriers to the conduction band, favoring electron transfer in redox reactions. As a result, the transformed V5O12·6H2O delivers a high capacity of 609 mA h g-1 at 0.1 A g-1, superior rate performance (300 mA h g-1 at 20 A g-1), fast-charging capability (<7 min charging for 465 mA h g-1), and excellent cycling stability with a reversible capacity of 346 mA h g-1 at 5 A g-1 after 5000 cycles.
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Affiliation(s)
- Li'e Mo
- University of Science and Technology of China, Hefei, Anhui 230026, P.R. China
- Key Laboratory of Photovoltaic and Energy Conservation Materials, CAS, Institute of Solid State Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230031, P.R. China
| | - Yang Huang
- Key Laboratory of Photovoltaic and Energy Conservation Materials, CAS, Institute of Solid State Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230031, P.R. China
| | - Yifan Wang
- University of Science and Technology of China, Hefei, Anhui 230026, P.R. China
- Key Laboratory of Photovoltaic and Energy Conservation Materials, CAS, Institute of Solid State Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230031, P.R. China
| | - Tingting Wei
- University of Science and Technology of China, Hefei, Anhui 230026, P.R. China
- Key Laboratory of Photovoltaic and Energy Conservation Materials, CAS, Institute of Solid State Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230031, P.R. China
| | - Xianxi Zhang
- Storage & Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252000, China
| | - Hong Zhang
- Hebei Computational Optical Imaging and Photoelectric Detection Technology Innovation Center, Hebei International Joint Research Center for Computational Optical Imaging and Intelligent Sensing, School of Mathematics and Physics Science and Engineering, Hebei University of Engineering, Handan, Hebei 056038, P.R. China
| | - Yingke Ren
- College of Science, Hebei University of Science and Technology, Shijiazhuang 050018, P.R. China
| | - Denghui Ji
- Science College, Shijiazhuang University, Shijiazhuang 050035, People's Republic of China
| | - Zhaoqian Li
- Key Laboratory of Photovoltaic and Energy Conservation Materials, CAS, Institute of Solid State Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230031, P.R. China
| | - Linhua Hu
- University of Science and Technology of China, Hefei, Anhui 230026, P.R. China
- Key Laboratory of Photovoltaic and Energy Conservation Materials, CAS, Institute of Solid State Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230031, P.R. China
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Kong S, Li Y, Zhang X, Xu Z, Wang X, Feng Y, Gong W, Liu C, Tian K, Li Q. Anchoring Polar Organic Molecules in Defective Ammonium Vanadate for High-Performance Flexible Aqueous Zinc-Ion Battery. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2304462. [PMID: 37649196 DOI: 10.1002/smll.202304462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2023] [Revised: 08/04/2023] [Indexed: 09/01/2023]
Abstract
Ammonium vanadate (NVO) often has unsatisfactory electrochemical performance due to the irreversible removal of NH4 + during the reaction. Herein, layered DMF-NVO nanoflake arrays (NFAs) grown on highly conductive carbon cloth (CC) are employed as the binder-free cathode (DMF-NVO NFAs/CC), which produces an enlarged interlayer spacing of 12.6 Å (against 9.5 Å for NH4 V4 O10 ) by effective N, N-dimethylformamide (DMF) intercalation. Furthermore, the strong attraction of highly polar carbonyl and ammonium ions in DMF can stabilize the lattice structure, and low-polar alkyl groups can interact with the weak electrostatic generated by Zn2+ , which allows Zn2+ to be freely intercalated. The DMF-NVO NFAs/CC//Zn battery exhibits an impressive high capacity of 536 mAh g-1 at 0.5 A g-1 , excellent rate capability, and cycling performance. The results of density functional theory simulation demonstrate that the intercalation of DMF can significantly reduce the band gap and the diffusion barrier of Zn2+ , and can also accommodate more Zn2+ . The assembled flexible aqueous rechargeable zinc ion batteries (FARZIBs) exhibit outstanding energy density and power density, up to 436 Wh kg-1 at 400 W kg-1 , and still remains 180 Wh kg-1 at 4000 W kg-1 . This work can provide a reference for the design of cathode materials for high-performance FARZIBs.
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Affiliation(s)
- Shuo Kong
- College of Materials Science and Engineering, Nanjing Tech University, Nanjing, 211816, China
| | - Yuxin Li
- College of Materials Science and Engineering, Nanjing Tech University, Nanjing, 211816, China
| | - Xiaojie Zhang
- College of Materials Science and Engineering, Nanjing Tech University, Nanjing, 211816, China
| | - Ziming Xu
- College of Materials Science and Engineering, Nanjing Tech University, Nanjing, 211816, China
| | - Xianzhen Wang
- College of Materials Science and Engineering, Nanjing Tech University, Nanjing, 211816, China
| | - Yongbao Feng
- College of Materials Science and Engineering, Nanjing Tech University, Nanjing, 211816, China
| | - Wenbin Gong
- School of Physics and Energy, Xuzhou University of Technology, Xuzhou, 221018, China
| | - Chenglong Liu
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, 230026, China
| | - Konghu Tian
- Analytical and Testing Center, Anhui University of Science and Technology, Huainan, 232001, China
| | - Qiulong Li
- College of Materials Science and Engineering, Nanjing Tech University, Nanjing, 211816, China
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